logo
  • BVT Sweden
  • Markets
    • Concentrated Solar Power
    • Combined Cycle Power Plants
    • Combined Heat and Power
  • Applications
    • Our Applications
    • Turbine Bypass System
    • Boiler Attemperator
    • Heater Bypass System
    • Condensate Recirculation
    • Deaerator Level Control
    • Boiler Feedwater Startup
    • Boiler Feedwater Pump Recirculation
    • Soot Blower Steam Service
    • Vent to atmosphere
  • Products
    • Our Products
    • Valves
      • BVT-TB steam conditioning valve
      • BVT-TBG steam conditioning valve
      • BVT-PB process bypass valve
      • BVT-SC pressure reducing valve
      • BVT-SV stop valve
      • BVT-HB heater bypass valves
      • BVT-BO turbine bypass valve
      • BVT-SCG pressure reduction valve
    • Desuperheaters
      • BVT-DLP steam desuperheater
      • BVT-DLB steam attemperator
      • BVT-DLBS steam attemperator
      • BVT-DLH steam attemperator
      • BVT-DPB1 probe-style attemperator
      • BVT-DP2 probe-style desuperheater
      • BVT-DP3 probe-style desuperheater
      • BVT-DLV venturi desuperheater
    • Actuation & Control
      • Pneumatics
      • Hydraulics
      • BVT-PD pneumatic piston actuator
      • BVT-MSA pneumatic diaphragm actuator
    • Spareparts & Upgrades
      • Spring-loaded Atomizing Nozzles
      • Spare parts and retrofits
      • Pneumatics
      • Hydraulics
      • BVT-Z quick change seat
      • BVT-ZP Zero Passage quick change seat
  • Services & Solutions
    • Plant Engineering
    • Field Service
    • Technical Solutions
    • BVT Remote Assist
  • Technical stories
  • Contact
    BVT Sweden > Products > Spareparts & Upgrades > BVT-ZP Zero Passage quick change seat

BVT-ZP Zero Passage quick change seat

Wet steam and particles result in erosion on trim parts. If erosion affects sealing surfaces, this might result in leakage and overheating of downstream piping. This is especially common after supercritical pressure drops, where particles and steam have very high velocity. It is also more common when the valve is operating at a small opening degree. The Zero Passing design eliminates the harmful high steam velocity inside the turbine bypass valves. By mitigating the internal steam velocity, BVT will decrease the maintenance costs, and will improve the reliability of the plant. BVT offers the ZP design both as an upgrade to existing bypass valves, and as a completely new unit.

Hard facing

The plug and seat also have stellite 6 hard facing as standard, further improving the sealing surfaces resistant to erosion. The plugs cage decreases the capacity of the valve, so it might be necessary to move to a larger seat size. The seat is not welded to the valve body, and thus does not need to be cut out. Seat removal and trim compression tools are included for quick and easy seat replacement.

Key features

  • Quicker and easier seat exchange
  • Reduced MTTR and longer service lifetime
  • Reduced downtime and maintenance cost
  • Reduced damage to valve seat
Brochure

Contact us for more information

Please enable JavaScript in your browser to complete this form.
Name *
Loading
Follow us

Facebook
Linkedin

Our partners

HP Valves B.V.
Key Valve Technologies LTD

Factory Support Office

Industrigatan 1-3
661 32 Säffle
SWEDEN
(from 2021-08-01)

Sales Office

BVT Sweden AB
Körkarlsvägen 8
SE-653 46 Karlstad
Sweden

Factory Address

Industrigatan 1
661 32 Säffle
Sweden

© 2019 BVT Sweden